Spraying apparatus



Nov. 10, 1925. 1,560,527

. E. M. BASSLER SPRAYING APPARATUS I Filed Dec. 8, 1921 2 Shah-Shut l- Law I Nov. 10 1925- 1,560,527

E. M. BASSLER M SPRAYING APPARATUS Filed Den. 8, 1921 2 Shah-Shut 2 Patented Nov. 10, 1925.

PATENT OFFICE.

Enwnr BASSLER, or MILWAUKEE, Wisconsin.

srmrme armumrus.

Application filed December a, 1921. Serial No. 520,801

To all whom it may concern:

Be it known that I, EDWIN M. BAssLEn, a citizen of the United'Sta-tes, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a new and useful Spraying Apparatus, of which the following is a specification. A This invention relates to spraying apparatus.

Primary objects of the invention are, to provide spraying apparatus adapted for con? venting into spray liquids of practically all kinds, regardless of their consistency whether thick or thin-and alsoregardless of whether they contain impurities or foreign matter in s 1, nsion, either granular or stringy, which might tend to clog the apparatus and seriously impair, or entirely prevent its operation To provide sprayingapparatus constructed and arranged for projecting the spray particles outwardly at high velocity, thus rendering the same particularly well adapted for scrubbing and clarifying air and gas by removing therefrom dust and other solid particles contained in and entrained therewith; also for washing and humidifying I air for heating and ventilating purposes.

Broadly stated, spraying apparatus embodying my invention and improvements, comprises a rotatable disk secured in which are spaced pins which project from a facethereof and are arranged at a distance from its axis of rotation, means for rotating said disk, means for discharging liquid upon the face of said disk from which the pins project, the centrifugal action of the disk when rotated operating to project theli uid discharged upon the said disk outward y across the face thereof and to deliver it in the-form of a thin sheet or film to the pins which project therefrom, whereby said sheet or film of liquid will be subjected to a combined beating and centrifugal action and will be projected outwardly in the form of a spray.

More specifically,- the pins secured in the spraying disk are outwardly flared and are arranged in a circular series the center of which is substantially coincident with the 0 axis of rotation of said disk, the face of the disk against which the liquid is discharged being conical and the, means for discharging liquid'against the face of said disk comprisa nozzle whichhas pipe connection with a source of supply of'liquid under pressure and which is directed upon the apex of the conical face of said disk.

In accordance with my invention, also, my improved-spraying apparatus comprises the various other features, combinations of features and details of construction hereinafter described and claimed.

In the accompanying drawings, in which my invention is fully illustrated,

Figure 1 is a side View of a spraying apparatus embodying my invention.

Figure 2 is a face view of the spray disk;

Figure 3 is a sectional view of said spray disk and of the water! discharge nozzle associated therewith, on the line 3--3 of Fig. 2.

Figure 4 is asectional elevation showing my improved sprayingapparatus installed in a trunk of a heating and ventilating system, said trunk beingv shown incross and said spraying apparatus in rear end view;

Figures 5 and 6 are views substantially similar to Fig. 1 illustrating modifications.

Broadly stated, a spraying apparatus embodying my invention and improvements comprises 'a disk mounted so as to rotate freely with a high peripheral velocity, 'secured in which at points remote from its axis of rotation are spaced pins, which project frontwards from the face of said disk and flare outwardly. In practice, I have found that hi hly satisfactoryresults are obtained with t e attached ends of "said pins spaced about five-sixteenths (5/16ths) of an inch apartand said pins flared outwardly at angles of about twenty six (26) degreesto the axis of said disk; This relation may, however, be varied within a considerable range, and I donot, therefore, desire to limit i myself to the exact relation shown or to any particular relation. Myimproved spraying apparatus also comprises means for imparting rotation to said disk and a nozzle havin pipe connection with a source of supply 0 water under pressure, adapted for directing a stream of water against the face of said disk, said' nozzle preferably being mounted in axial alignment with the disk.

Referring now particularly to Figs. 1 tov 4 ofthe drawings, in which I have shown what I now considefto be the preferable embodiment of my: invention', 1- designates the s'prayingdisk, whichisrotatably mount I ed on] the rotor shaft 2 of an'electric motor, indicated at 3. As shown, the means for mounting said spraying disk comprises a hub 4 formed on the rear side thereof provided with a bore to which the end of the rotor shaft 2 is fitted, said disk being secured to said rotor shaft by a set screw or other means. i I

The disk 1 is preferably made of cast bronze, the front face thereof being substantially conical in shape and comprising separate sections 5 and 6 separated by a circular shoulder 7, the outer section 6 being'posi- 'tioned rearwardly from the section 5. shown, the face of the section 5 of the disk is slightly concave and the section 6 thereof comprises a surface 8 in which the spray pins 9 are secured, the attached ends of said spray pins being preferably spaced about five-sixteenths (5/16ths) of an inch apart from center to center, and the outer ends thereof diverging outwardly at angles of approximately twenty-six (26) degrees to the axis of said disk. The surface 8 of the disk is also rearwardly inclined at an angle which may be the complement of the angle of divergence of the pins 9 relatively to the axis of the disk. Vith this relation the pins 9 will extend substantially at right angles to the surface 8, which will facilitate drilling the holes in which the pins 9 are secured.

The rear side of the disk 1 is recessed in order to reduce the weight thereof as much as possible consistent with requisite strength, being shaped to form a circular shoulder 10 corresponding to the shoulder 7 on the front side ofsaid disk, and formed in the body portion of the disk, so as to open through the shoulders 7 and 10, are. what may be designated air ports 11, which extend sub-.

stantially radially, and through which, 'in

. operation, the centrifugal action of said disk will produce currents of air which will enter the rear or inner ends of said air ports and will bedischarge'd through the outer ends thereof, said currents of air'becoming mixed and intermingled with the water discharged against the face of the disk 1, in operation, in the form of bubbles, which will facilitate the conversion of said water into spray.

Supported in front of the disk 1 is a water nozzle 12, the discharge end of which is di rected against the apex of the conical face of said disk. Said no'zzle has pipe connection with a source of water under pressure, as with an electrically driven pump, not

' shown.

The water discharge nozzle 12 is of such large 'sizesay one (1) inch in diameteras will provide an abundant water supply and will insure against choking of said"nozzle byk theldeposlt of dirt and sediment in operation.-

In practlce, I have used-with highly successful resultsa spraying disk 1 substan my' improved spraying apparatus as applied in use to a heatin and ventilating system by forced circulation, the spraying disk 1, motor 3, and water discharge nozzle 12 being mounted at the center of the air intake trunk of said system, indicated in section by the reference numeral 14.

In the operation of my improved spraying apparatus, the fan or blower for creating a current of air through the heating and ventilating system is first turned on, followed in'turn by the motor 3, which drives the spraying disk 1, and as soon as said spraying disk attains a desired-speed, the pump, not shown.

Va-tel discharged against the face of the spraying disk 1 from the water discharge nozzle 12 will flow along the face of sald spraying disk from its center outwardly, in the form of a thin sheet, atomization of which will be effected by the beating action of the pins 9 as the spraying disk '1 is rotated at high peripheral velocity, thus causing said pins to cut through or across the sheet of water passing outwardly along or over the face of said disk at almost imperceptible intervals, the centrifugal action of said pins also operating to throw the atomized water particles formed thereby outwardly in a plane substantially at right angles to the axis of said spraying dlsk, the volume of water being sufficiently large to form a spray of sufiicient'density and force to-intercept and wash out all solid matter carried by the current of air which traverses the spray screen or curtain formed by said spraying disk.

I have found, in practice, that the atomizing action of the spraying disk is enhanced by the currents of air discharged outwardly along the face of the section 6 of said spray-, ing diskthrough the air ports 11'.

The spraying action ofmy improved spraying disk 1 is affected practically not at all by the impact of the water discharged from the water discharge nozzle 12 against the face of said spraying disk.

The face of the disk 1 is so shaped that water traversing the same will contact with the pins 9 at or closely adjacent "to their at ter contained in the water, which might otherwise catch on thepins 9 and obstruct the free passage of water between same.

As a result of extended tests and experiment, I have found that a spraying apparatus of my invention comprising a single spraying disk 1 will form a spray screen or curtain having greater density and force than those produced by any spraying apparat'us heretofore used; may be constructed at a smaller cost; is much more effective in operation; and will not-become clogged or choked up as do the spray heads heretoforethe conical front face of said disk being continuous from the center to the peripheryof the disk, and being straight instead of concave.

-. This modification is shown inFig. 5 of the drawings, in which 1 designates .the

spraying disk, 15 the straight, conical'front face thereof, 9 the flared spray pins and 4 the .hub for mounting spraying disk, said hub being provided with a bore to receive the rotor shaft. I

-As still a further modification of sad spraying disk, I contemplate making tie front face thereof plane.

Thismodification is shown in Fig. 6 of the drawings, in which 1 designates the spraying disk, the front face of whichlis plane and extends at right angles to the axis of rotation of said disk, 9 the flared spray pins, and 4 the hub for mounting said spraying disk.

' As in the preferred form of the apparatus,

'- the spraying action of the modification shown in Figs. Sand 6, is produced by the combined beating and centrifugal action of the pins 9, 9 and not 'at all by the velocity of the water discharge against said spraying disk from the water discharge nozzle 12. -As shown, the spray pins 9 are round,

but the shape of said pins is immaterial and they may be made of any desired shape within the scope and contemplation of my invention.

I claim: v i 1.111 spraying apparatus, the combination ,of a rotatable disk, spacedpins which project from a face of said d1sk at a distance from its axis of rotation, meansfor rotating r said disk, means for discharging liqnid upon the face of said disk from which the pins project, the centrifugal' action of the disk when rotatedoperating to project-the liquid I discharged upon said disk' outwardly across the face'thereof and to deliver it in the form "of'a thin sheet or film to the pins which project from saiddisk, which will subject said sheet or film of liquid to a beating and centrifugalaction and will project it outwardly in the form of spray.

2. Spraying apparatus 'as specified in 7o claim 1, in which the pins secured .in said disk are outwardly flared.

3. Spraying apparatus as specified in claim 1, in which the pins secured in said d1sk form a circular series vthe center of which is substantially coincident with the axis ofrotation of said disk.

4. Spraying apparatus as specified in 'claim 1, in which the pins form a circular series and are secured inthe disk adjacent tO'ltS periphery.

5.-Spraying apparatus as specified in which the liquidis discharged is conical and the liquid isdischarged uponvthe apex of said cone.

claim 1, in which the face of the disk against Q. Spraying apparatus asv specified in claim 1, in which the face of the disk against -which the liquid is discharged is conical and slightly concave.

7. Spraying apparatus as claim 1, in which the face of the spraying disk against which the liquid is discharged cgmprises separate central and marginal sec-' ,tlons, the marginal section be ng arranged rearwardly from saidcentral section and the pins being arranged adjacent to the periphcry of said rear marginal section.

8. Spraying apparatus as specified in claim 1, in which the face of the vdisk against which theliquid is dischargedcomprises sep-.

arate central and marginal sections, the centr'al' section being conical and the marginal section being arranged rearwardly from said central section, and the pins being arranged adjacent to the peripherythereof.

9. Spraying apparatus as specified in claim 1, in which the face of the disk against which the liquid is dischargedcomprises separate central and marginal-sections, the

marginal section being arranged rearwardly. from said central section forming ashou lder between said sections, and said disk being 7 provided with airports which open through said shoulder and the inner ends of which open throughthe rear side of said disk and are disposed inwardly from the outer ends thereo 10. Spraying apparatusas specified in claim 1, in which the face of the disk against which the liquid is discharged comprises separate central and marginal sections, the

mar ina section bein arran 'ed rearwardl from said cefitral section forming a. shoulder between said sections, and said disk being provided with air ports which open throu h said shoulder, said ports extending radia y offlsaid disk and their inner ends opening through the rear side thereof. 11. Spraying apparatus as specified m Ill - claim 1, in which the face of the disk against which the liquid is discharged comprises separate central and marginal sections, the marginal section being arranged rearwardly from said central section forming a shoulder between said sections, and the rear side of said disk being recessed to lighten the same and to provide a shoulder therein arranged inwardly from the shoulder formed in its front face, said disk being provided with air ports opposite ends of which open through the shoulders formed, respectively, in the rear and front sides of said disk.

12. Spraying apparatus as specified in claim 1, in which the means for discharging 15 my invention, I aliix my signature this 30th 20 day of November, 1921.

EDlVIN M. BASSLER. 

